Method for determining positional errors and for compensating fo

Details Method for determining positional errors and for compensating fo Method for determining positional errors and for compensating fo

1989-02-17

1991-01-08

Cuchlinski, Jr., William A.

Geometrical instruments

Gauge

With calibration device or gauge for nuclear reactor element

33505, 33503, 73 1J, 36457101, 36457102, G01C 2500, G10B 503

Patent

active

049825046

ABSTRACT:
A method for determining and correcting positional errors or deviations which occur when measuring the position of a point in space, or when positioning to a point which has a specific position in space, where the position refers to a specific coordinate system, such as a rectangular coordinate system. The method comprises making a comparison between a multiple of measured values and at least one reference, and determining a correction on the basis of this comparison, wherewith a positionable member, such as a contact probe, a tool holder or corresponding device (1, 13) is moved to a given position in space during the measuring or positioning process. The method is particularly characterized in that the reference consists of a geometry of known kind, and in that the measured values are correlated to a geometry of known kind, this correlation being used to calculate corrections for the coordinate axes of the system. There is also an apparatus for carrying out the method.

REFERENCES:
patent: 3795054 (1974-03-01), Kinney
patent: 4437151 (1984-03-01), Hurt et al.
patent: 4492036 (1985-01-01), Beckwith, Jr.
patent: 4523450 (1985-06-01), Herzog
patent: 4549359 (1985-10-01), Hense et al.
patent: 4777818 (1988-10-01), McMurtry
patent: 4819195 (1989-04-01), Bell et al.
patent: 4939678 (1990-07-01), Beckwith, Jr.

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